Comment 27 for bug 231986

I own a F3S laptop myself and found a workaround/solution right here:

http://ubuntuforums.org/showthread.php?t=605990&highlight=82801H&page=2

It comes down to the following:

First install the latest version of Alsa (1.0.16 for Hardy Heron)
After that, you create a file in /etc/modutils called, for example, 'alsa' with this sequence of aliases and options:

alias char-major-116 snd
alias snd-card-0 snd-hda-intel
# module options should go here
options snd-hda-intel model=lenovo

# OSS/Free
alias char-major-14 soundcore
alias sound-slot-0 snd-card-0

# card #1
alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss

The most important is the line:
options snd-hda-intel model=lenovo

For a secure success, add the line above in the file /etc/modprobe.d/alsa-base too
If it doesn't exixt, create!

After you must restart. If you still have no sound, run 'alsamixer' and if necessary unmute all channel and set the volume.